/*********  一些初始样式  *********/
*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
/* 去除图片底部4px白边 */
img{
    vertical-align: middle;
}
/* 去除li的点 */
ul{
    list-style: none;
}
/* 重置a标签的默认样式 */
a{
    text-decoration: none;
    color: black;
}

.backBG{
    background-color: rgb(66, 127, 109)!important;
}
.back{
    background-color: rgba(40,40,40,.4);
}
.backHome{
    background-color: rgba(60, 135, 111,.6)!important;
}

/*滚动条宽度*/
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
/*滚动条轨道*/
::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 2px;
}
/*小滑块*/
::-webkit-scrollbar-thumb {
    background: rgba(0,155,124,1);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgb(62,115,110);
}


/*********  新闻管理的样式  *********/
main{
    position: relative;
    display: flex;
}

main .div1{
    position: absolute;
    top: 0;
    left: 0;
    width: 280px;
    height: 720px;
    background-color: rgba(67,155,124,1);
    box-shadow: 1px 0 8px black;
}
main .div1 h2{
    padding-top: 15px;
    color: white;
    text-align: center;
    text-shadow: 2px 2px black;
}

/*********  左侧折叠菜单的样式  *********/

main .div11{
}

main .div1 .home{
    padding-top: 0;
    text-align: left;
    text-shadow: none;
    margin-top: 20px;
    padding-left: 20px;
    width:100%;
    height: 60px;
    line-height: 60px;
    font-size:20px;
    font-weight:bold;
    font-style:italic;
    color:white;
    background-color: rgba(40,40,40,.4);
    user-select: none;
}
main .div1 .home a{
    color:white;
    user-select: none;
}

/* 菜单栏属性 */
.head{
    width:100%;
    height: 60px;
    line-height: 60px;
    padding-left: 20px;
    font-size:20px;
    font-weight:bold;
    font-style:italic;
    color:white;
    background-color: rgba(60, 135, 111,.6);
    cursor: pointer;
    user-select: none;
}
.head:hover{
    background-color: rgba(40,40,40,.4);
}
/* 下拉选择框属性 */
.content{
    user-select: none;
    width:100%;
    color: white;
    background-color: rgb(66, 127, 109);
}
.content div{
    padding: 10px 0 10px 40px;
    width: 100%;
    line-height: 24px;
    font-size: 18px;
    color: white;
}
.content div a{
    color: white;
}
.content div:hover{
    background-color: rgba(50, 108, 94, 0.8) !important;
}

.hid{
    display:none;
}

/*********  右侧的样式  *********/
main .div2{
    position: absolute;
    top: 0;
    left: 280px;
    width: 1250px;
    height: 64px;
    background-color: #097f5a;
    box-shadow: 2px 2px 4px black;
}
/*main .div2 a{*/
/*    margin-left: 20px;*/
/*    line-height: 80px;*/
/*    font-weight: bold;*/
/*    font-size: 18px;*/
/*}*/
main .div21{
    position: absolute;
    top: 8px;
    right: 0;
    display: block;
}
main .div21 a{
    font-size: 14px;
    font-weight: bold;
    margin-left: 8px;
    margin-top: 14px;
}
main .div21 a:hover{
    color: white;
}

main .div21 #setting_div{
    margin-top: 10px;
    margin-left: 20px;
    border-radius: 4px;
    display: none;
    width: 100px;
    background-color: gray;
    box-shadow: 2px 2px 4px black;
}
main .div21 #setting_div a{
    font-size: 14px;
    font-weight: bold;
    margin-left: 0;
}
main .div21 #setting_div ul{
    text-align: center;
}
main .div21 #setting_div ul li{
    padding: 4px 0;
    width: 100%;
}
main .div21 #setting_div ul li:hover{
    background-color: cadetblue;
}

main .div21 .avatar{
    width: 200px;
    height: 48px;
}
main .div21 .avatar img{
    width: 48px;
    height: 48px;
    border-radius: 24px;
}

main .div3{
    z-index: -1;
    position: absolute;
    top: 66px;
    left: 280px;
    width: 1250px;
    height: 650px;
}
main .div3 iframe{
    min-width: 100%;
    min-height: 650px;
    margin: auto;
    border: none;
}


